But on Thursday, a group of parents represented by the advocacy organization Public Citizen plans to argue to a federal appeals court that Facebook hasn’t done enough.

According to media reports, the group is expected to file a legal brief with the Ninth Circuit Court of Appeals in San Francisco, saying the settlement violates the law of seven states: California, Florida, New York, Oklahoma, Tennessee, Virginia and Wisconsin. It argues Facebook should receive explicit permission from parents before using teenage users’ personal information in advertising.

“The default should be that a minor’s image should not be used for advertising unless the parent opts in. Putting the burden on the parent to opt the child out gets it exactly backward,” Scott Michelman, a lawyer at Public Citizen, told the New York Times.

Facebook begs to differ.

“The court-approved settlement provides substantial benefits to everyone on Facebook, including teens and their parents, and goes beyond what any other company has done to provide consumers visibility into and control over their information in advertising,” Facebook spokeswoman Jodi Seth said. “The same arguments on state law were raised and rejected by the court last year, and a dozen respected groups continue to support the settlement.”